2003 Fuel Injection Air & Fuel Delivery - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70082

Fuel Injection Systems, Ultimate LS 750 HP Dual Quad Matte Black EFI System With Cathedral Port Intake & Transmission Control

Part Number: FIF-70082

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Standard Motor Idle Air Control Valves for 2000-2003 RAM 2500, RAM 3500 - AC416

Idle Air Control, IAC Valve, Dodge, Each

Part Number: SMP-AC416

5.0 out of 5 stars ( 3 )

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FAST Fuel Rail Mounting Brackets 146031-KIT

Fuel Rail Components, Fuel Rail Mounts, LSXR Intakes, GM, LS Engines, Kit

Part Number: FST-146031-KIT

5.0 out of 5 stars ( 1 )

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FiTech Rebel LS Fabricated Intake Manifolds 73120

Intake Manifold, Fuel Injected, Rebel LS Tall, 1,000 HP, Cathedral Port, Aluminum, Satin, 102mm Black Throttle Body, Cable Drive, Chevy, LS1, Kit

Part Number: FIF-73120

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

ICT Billet Throttle Body Bolts 551431

ICT Billet Throttle Body Bolts 551431

Throttle Body Replacement Components, Bolt Kit, Fits Stock Throttle Body, Grade 10.9, M6 x 25mm, Chevrolet, LS, Set of 4

Part Number: ICB-551431

5.0 out of 5 stars ( 1 )

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ICT Billet Mock-Up Fuel Injector Plugs 551333-LS1

Injectors, Mock Plug, Mock Plug Fuel Injectors LS1 Height

Part Number: ICB-551333-LS1

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Summit Racing™ GM Throttle Body Wiring Harness Adapters SUM-890106

Throttle Body Adapter Harness, LS2 Throttle Body to LS1 Vehicle, Each

Part Number: SUM-890106

Not Yet Reviewed

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ACDelco Gold Fuel Injectors 19236321

Fuel Injector, Professional, AM General, Chevy, GMC, Hummer, Each

Part Number: ADO-217-3226

Not Yet Reviewed

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Summit Racing™ Diesel Fuel Injectors SUM-240070

Fuel Injector, Diesel, Chevy, GMC, 6.6L, Duramax, LB7, 2001-2004.5, Each

Part Number: SUM-240070

Not Yet Reviewed

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BTR Throttle Bodies BTR-TB-92H

Throttle Body, Drive-By-Wire, Cast Aluminum, 92mm, Dodge, Hemi Gen III, Each

Part Number: BTC-BTR-TB-92H

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

FAST Throttle Body Adapters 146029-KIT

Throttle Body Adapter, 102mm Bore, Aluminum, Natural, Chevy, GMC, Small Block LS, FAST LSX, Each

Part Number: FST-146029-KIT

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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FAST LSXRT OEM Fuel Rail Mounting Kits 146033MB

Fuel Rail Components, LSXRT OEM Fuel Rail Mounting Kits, Extension Bracket, Chevrolet, Small Block LS, Each

Part Number: FST-146033MB

5.0 out of 5 stars ( 2 )

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FiTech Ultimate LS EFI 500 HP Fuel Injection Systems with Go Fuel In-Tank Module 76207

Fuel Injection System, Ultimate LS 500 HP, Multiport, Tall Intake for Truck Accessories Cathedral Port, Go Fuel, Transmission Controller, Kit

Part Number: FIF-76207

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Standard Motor Fuel Injector O-Rings SK57

O-Rings, Fuel Injection, Viton®, Kit

Part Number: SMP-SK57

4.67 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Holley LS Throttle Bodies 112-589

Throttle Bodies, LS Style, Multi-Port Injection, Cable Actuated, 90mm Bore, Billet Aluminum, Black Anodized, Chevy, 4.8-7.0L, LS Based, Each

Part Number: HLY-112-589

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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DeatschWerks Fuel Injectors for 2005-2015 F-150, 2010-2015 F-250 SUPER DUTY, 2003-2025 MUSTANG - 17U-04-0095-8

Fuel Injectors, 95 lbs./hr., USCAR, EV14, 12.4 Ohms, with O-rings, Ford, Flex Fuel and Gasoline V8 Engines, Set of 8

Part Number: DWK-17U0400958

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Granatelli Motor Sports Throttle Bodies GMTBLT112

Throttle Body, 112mm, Drive-By-Wire, Billet Aluminum, Natural, Cadillac, Chevrolet, GMC, Each

Part Number: GRN-GMTBLT112

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Pacific Performance Engineering Race Fuel Pressure Relief Valves 113072800

Fuel Rail Fitting, Pressure Release Valve, Duramax Diesel, Chevy, GMC, LB7, Each

Part Number: PPE-113072800

5.0 out of 5 stars ( 1 )

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Lokar Hi-Tech Throttle Cables TCP-1000TPVU

Throttle Cable, Black Vinyl, Polished Fittings, 36 in. Long, Chevy Gen 1 Vortec, Each

Part Number: LOK-TCP-1000TPVU

5.0 out of 5 stars ( 1 )

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Injector Dynamics ID1050x Fuel Injectors 1050.60.11.D.4

Injector Dynamics ID1050X Injectors 11mm (Blue) Adapter Tops Denso Lower (Set of 4)

Part Number: IJD-10506011D4

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

ACDelco Fuel Injector Retaining Clips 12584591

Fuel Injector Retaining Clips, GM, Steel, Natural, Each

Part Number: ADO-12584591

1.0 out of 5 stars ( 1 )

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Delphi Fuel Injectors FJ10494

Fuel Injector, Chevrolet, GMC, Each

Part Number: DFP-FJ10494

5.0 out of 5 stars ( 1 )

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ICT Billet Throttle Body Adapters 551781

Throttle Body Adapter, Clocking Adapter, Billet Aluminum, Allows the Throttle Body to be Rotated 12 or 24 degrees Clockwise or Counterclockwise, Kit

Part Number: ICB-551781

5.0 out of 5 stars ( 2 )

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Standard Motor T-Series Idle Air Control Valves AC1T

Idle Air Control, IAC Valve, AM General, Buick, Cadillac, Chevy, GMC, Isuzu, Jaguar, Land Rover, Oldsmobile, Pontiac, Each

Part Number: SMP-AC1T

Not Yet Reviewed

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Chevrolet Performance Fuel Rail Covers for 1999-2004 CORVETTE - 12561503

Fuel Rail Cover, Left, Black, Chevy, Small Block, LS1, Each

Part Number: NAL-12561503

5.0 out of 5 stars ( 4 )

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